Optical Investigations of La_{7/8}Sr_{1/8}MnO_3

Preprint

7 September 1998

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9809107

Abstract

We investigated temperature dependent optical conductivity spectra of La_{7/8}Sr_{1/8}MnO_3. Its phonon bending mode starts to be splitted near a structural phase transition temperature. With further cooling, strength of a mid-infrared small polaron peak, which is located at 0.4 eV, becomes increased. These temperature dependent changes in the phonon spectra and the polaron absorption peaks were explained by a phase separation and a percolation-type transition.

Keywords

ABSORPTION
CONDUCTIVITY SPECTRA
DEPENDENT OPTICAL
MNO_3
OPTICAL CONDUCTIVITY
OPTICAL INVESTIGATIONS
PHASE TRANSITION
PHONON
POLARON

All Related Versions

Version 1, 1998-09-07, ArXiv
Published version: Physical Review B, 59 (5), 3793.

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